JP4802890B2 - Vehicle security system - Google Patents

Description

  The present invention provides a vehicle security system for preventing theft of a vehicle by preventing others from starting the traveling drive source of the vehicle by using the owner verification item when the owner verification item is lost. In particular, the present invention relates to a case where there are a plurality of owner confirmation items.

  There is a vehicle anti-theft system using an immobilizer. This is because a transponder is provided in the key of the vehicle, the ID code unique to this transponder and the ID code on the vehicle side are collated, and if they match, it is determined that the vehicle is a proper owner and the engine is allowed to start. The content.

In this system, there is a system disclosed in, for example, Japanese Patent Application Laid-Open No. 2004-228620 as a system that can cope with a case where a key is lost or a key is stolen. When this system notices that the key has been lost, an information terminal such as a mobile phone informs the information center that the information center instructs the vehicle to prohibit starting the engine. It is to prevent the engine from operating if it is rare.
JP 2003-146185 A

  A vehicle usually has a spare key. For this reason, in the system of Patent Document 1, when the key that is always used is lost in the state where the vehicle is at hand, when reporting to the information center for safety, although there is a spare key, This causes a problem that the vehicle cannot be driven.

  The present invention has been made in view of the above circumstances, and an object thereof is to individually specify an owner confirmation article that can prohibit starting of the traveling drive source when there are a plurality of owner confirmation articles. An object of the present invention is to provide a vehicular security system that can start a traveling drive source by using an owner confirmation article that is not prohibited from starting.

  According to the first aspect of the present invention, a plurality of owner confirmation items that can be carried by the owner of the vehicle, and a person who is provided in the vehicle and performs a start operation of the traveling drive source of the vehicle are used for the plurality of owner confirmations. A starting permission device that allows starting of the traveling drive source when it is confirmed that the vehicle is owned by any of the articles, and different identification information is stored in each of the plurality of owner confirmation articles. Start permission identification information in which identification information storage means and transmission means for transmitting the identification information stored in the storage means are provided, and the start permission device stores the identification information of the plurality of owner confirmation articles. A storage means; an input means for inputting identification information that the user desires to delete from among the plurality of identification information stored in the start permission identification information storage means; and the start permission identification information. The travel drive is performed by an erasing unit that erases the identification information input by the input unit from among the identification information stored in the storage unit, and a person who carries one of the plurality of owner confirmation articles. When the starting operation of the source is performed, receiving means for receiving the identification information transmitted from the owner confirmation article, and the identification information received by the receiving means are stored in the starting permission identification information storage means. The vehicle security system is provided with confirmation determination means for determining that the vehicle has been confirmed to be an owner when the identification information matches one of the identification information, and allowing the travel drive source to start. It is in.

  According to this configuration, it is possible to prohibit starting of the travel drive source only for the missing owner confirmation article. For this reason, if the vehicle is at hand, it is possible to effectively prevent the vehicle from being stolen by the owner confirmation article by prohibiting the start of the traveling drive source for the lost owner confirmation article. Since such a prohibition is not made for the article for use, the owner confirmation can be performed using another owner confirmation article, and the traveling drive source can be started.

Moreover, in the invention of claim 1, when the receiving means receives the identification number of the owner confirmation article when the travel drive source is started, the identification number is stored and / or identified. Use status storage means for storing the number of times of use for each number is provided, and the input means replaces the identification information of the owner confirmation article, and the last used owner confirmation article and / or least frequently used When it is configured to be able to input an owner confirmation article, and the last used owner confirmation article or the least frequently used owner confirmation article is received as erasure target information from the input means, the erasure means The last used identification information or the least frequently used identification information is searched from the usage status storage means, and the identification information is deleted from the start permission identification information storage means. It is set to.
Therefore, it is possible to effectively cope with the case where the identification information of the owner confirmation article is forgotten.

In the invention of claim 2, since the input means is composed of manual operation means, when the vehicle is at hand, the identification information of the owner confirmation article for prohibiting starting of the driving source from the manual operation means is simplified. Can be entered.
In the invention of claim 3, since the input means is composed of mobile communication means capable of communicating with the information center, even if the vehicle is not at hand, by notifying the information center from the information terminal, It is possible to input identification information of an article for owner confirmation that is prohibited from starting, and the anti-theft effect is improved.

Hereinafter, a first reference example of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the vehicle 1 is provided with a key switch 2. For example, all three keys 3 to 5 shown in the figure are inserted into the key cylinder 6 shown in FIG. Operation is possible. When the key cylinder 6 is rotated to the start position, for example, an engine (not shown) as a vehicle driving source is started. In the case of an electric vehicle, a motor is a travel drive source. The three keys 3-5, ID storage unit 7 as identification information storing means and transponders 10 are respectively provided with a control unit 8 and the transceiver 9, the ID storage unit 7, key 3 Different ID codes (identification information) are stored for every five.

  In addition to the key switch 2, the vehicle 1 is provided with an immobilizer ECU 11 as a start permission device, an engine ECU 12 as a travel drive source control means, a navigation device 13, and the like. The immobilizer ECU 11 includes a control unit 14, a transmission / reception unit 15, and an ID verification unit 16. The transmission / reception unit 15 is provided in the key cylinder 6, communicates by radio waves with the transmission / reception unit 9 of the key transponder 10 inserted into the key cylinder 6, and receives the ID code transmitted from the transmission / reception unit 9. The ID collation unit 16 collates the ID code received by the transmission / reception unit 15 with the ID code stored in the engine start permission ID storage unit 17 and determines whether or not they match (match determination unit). The control unit 14 transmits a start permission signal or a start prohibition signal to the engine ECU 15 according to the determination result of the ID verification unit 16. Here, the transmission / reception unit 9 of the transponder 10 is a transmission unit that transmits the ID code, the transmission / reception unit 15 of the immobilizer ECU 11 is a reception unit that receives the ID code, and the control unit 14 is a confirmation determination unit that allows the engine to start. Each functions.

On the other hand, the key cylinder 6 can be set at four positions: an off position, an accessory position, an on position, and a start position. When the key cylinder 6 is turned to the start position, the key switch 2 energizes the engine starter motor and the ignition coil to start the engine. In contrast, the engine ECU12, when Ru receiving the start permit signal from the immobilizer ECU11 is to permit energization by the key switch 2 to the ignition coil of the starter motor and the engine, when receiving a start inhibition signal from the immobilizer ECU11 The key switch 2 is disconnected from the starter motor and the ignition coil so that the starter motor and the ignition coil are not energized (the engine does not start).

The engine start permission ID storage unit 17 stores ID codes of three keys 3 to 5. For this reason, if the ID code of the key inserted into the key cylinder 6 exists in the ID code stored in the engine start permission ID storage unit 17, it is estimated that the owner of the vehicle 1 is going to start the engine. it can. Therefore, the keys 3 to 5 function as an owner confirmation article for confirming that the vehicle is the owner, and the engine start permission ID storage unit 17 functions as a start permission identification information storage unit. .

By the way, if the keys 3 to 5 are stolen or lost, it is possible that someone other than the owner of the vehicle will use the key to start the engine. The key ID code is deleted from the engine start permission ID storage unit 17. The input of the ID code to be deleted is performed using the navigation device 13 in this reference example .

  The navigation device 13 includes a control unit 18, a display unit 19, an input unit 20 as input means, a personal authentication unit 21, and a personal information storage unit 22. The display unit 19 is composed of, for example, a liquid crystal display. The input unit 20 includes manual operation means such as a touch panel provided on the liquid crystal display of the display unit 19, for example. The personal authentication unit 21 compares the user ID code (personal identification information) and password input from the input unit 20 with the user ID code and password stored in the personal information storage unit 22. Authenticate Then, the control unit 18 gives this to the engine start permission ID changing unit 23 as an ID code (erase target information) for deleting the ID code input from the input unit 20. The engine start permission ID changing unit 23 deletes the ID code given as the deletion target information from the ID codes stored in the engine start permission ID storage unit 17. Accordingly, the engine start permission ID storage unit 17 functions as an erasing unit.

  Here, the control contents when the ID code stored in the engine start permission ID storage unit 17 is erased will be described with reference to the flowchart of FIG. Of the three keys 3 to 5, it is assumed that the key 3 is always used, for example. Assume that the key 3 is lost for some reason. Then, since the vehicle 1 may be stolen using the key 3, the ID code of the key 3 is deleted from the engine start permission ID storage unit 17 in order to prevent the key 3 from starting the engine. .

  For that purpose, the door of the vehicle 1 is opened using another key, for example, the key 4 and the vehicle 1 is entered. Then, the key 4 is inserted into the key cylinder 6 and the key switch 2 is operated to turn on the navigation device 13. And the navigation apparatus 13 is set to ID code deletion mode (step S1). When the ID code deletion mode is set, the control unit 18 of the navigation device 13 displays the numeric keys and alphabet keys on the display unit 19, so that the numeric keys and alphabet keys are operated to input the user ID code and password, The ID code of the key to be erased is input (step S2).

  The control unit 18 of the navigation device 13 compares the input user ID code and password with the user ID code and password stored in the personal information storage unit 22, and if they do not match, "NO" is determined in step S3. Determination is made, and the ID code erasure processing routine of FIG. 3 is terminated. If the input user ID code and password match the user ID code and password stored in personal information storage unit 22, control unit 18 authenticates the user ("YES" in step S3) and inputs The obtained ID code is sent to the engine start permission ID changing unit 23 (step S4).

  The engine start permission ID changing unit 23 searches the engine start permission ID storage unit 17 and determines whether or not the sent ID code exists in the engine start permission ID storage unit 17 (step S5). If the ID code sent to be deleted does not exist in the engine start permission ID storage unit 17, the engine start permission ID change unit 23 determines “NO” in step S5, and the ID code deletion process of FIG. End the routine. If the ID code sent to be deleted is present in the engine start permission ID storage unit 17, the engine start permission ID change unit 23 determines “YES” in step S5, and the engine start permission ID storage unit. The ID code sent to be erased is erased from the ID codes stored in 17, and the ID code erase processing routine of FIG. 3 is terminated.

If the ID code of the key lost as described above is erased from the engine start permission ID storage unit 17, the engine start is prohibited even if the engine is subsequently started using the lost key. The theft of the vehicle 1 can be prevented.
In addition, when the engine is started using a key other than the lost key, the engine starts normally, so that the engine is turned on even though the vehicle 1 is at hand and the spare key is at hand. It is possible to eliminate problems such as being unable to start.

4 and 5 show a second reference example of the present invention.
This reference example is different from the first reference example in that when the ID code stored in the engine start permission ID storage unit 17 is deleted, the ID code to be deleted is changed to the engine start permission ID via the information center. This is because the data is input to the unit 23. Hereinafter, the second reference example 1 and the same parts are denoted by the same reference numerals without detailed description in FIG. 4 will be described, and only different parts.

  As shown in FIG. 4, the vehicle 1 is provided with a mobile telephone module 24 as mobile communication means. On the other hand, the information center 25 is configured to be able to communicate using the mobile phone module 24 of the vehicle 1 or an information terminal 27 such as a mobile phone or a personal computer via a communication network such as a mobile phone network or the Internet. The information center 25 includes a communication unit 28, a control unit 29, a personal authentication unit 30, and a database 31.

  The communication unit 28 is connected to the communication network 26 and communicates with the mobile phone module 24 and the information terminal 27. The database 31 stores a vehicle ID code, a user ID code, a password, a telephone number of the mobile telephone module 24 and the like for each vehicle 1. The personal authentication unit 30 determines whether the vehicle ID code, the user ID code, and the password transmitted from the information terminal 27 are stored in the database 31, and if stored, the control unit 29 determines that the vehicle One mobile telephone module 24 is called to transmit an ID code to be erased.

  FIG. 5 shows a flowchart showing control for erasing the ID code stored in the engine start permission ID storage unit 17. That is, to delete the ID code of the lost key from the engine start permission ID storage unit 17, first, the vehicle ID code, the user ID code, the password and the ID code of the key to be deleted are transmitted from the information terminal 27 to the information center 25. (Step A1).

  When the communication unit 28 receives the vehicle ID code, the user ID code, the password, and the ID code of the key to be deleted, the personal authentication unit 30 of the information center 25 compares the received vehicle ID code, user ID code, and password with the database 31. (Step A2), it is determined whether it is registered in the database 31 (Step A3). If the received vehicle ID code, user ID code, and password are not registered in the database 31 (“NO” in step A3), the control unit 29 determines “NO” in step A3, and the communication unit 28 determines the information terminal. 27 is notified of the authentication failure (step A4), and ends. The information terminal 27 displays the received authentication failure on a display unit (not shown) and notifies the user.

  When the received vehicle ID code, user ID code, and password are registered in the database 31, the control unit 29 is “YES” in step A3, and should be deleted in the mobile phone module 24 of the vehicle 1 in the next step A5. Notify the key ID code. The mobile telephone module 24 sends the received ID code to the engine start permission ID changing unit 23. The engine start permission ID changing unit 23 searches the engine start permission ID storage unit 17 and determines whether or not the sent ID code exists in the engine start permission ID storage unit 17 (step A6).

  If the ID code sent to be deleted does not exist in the engine start permission ID storage unit 17, the engine start permission ID change unit 23 determines “NO” in step A6, and notifies the mobile phone module 24 to that effect. The mobile telephone module 24 notifies the information center 25 of the absence of the ID code (step A7). The communication unit 28 of the information center 25 notified of the absence of the ID code notifies the information terminal 27 to that effect from the communication unit 28 (step A8), and ends the ID code deletion processing routine of FIG. The information terminal 27 displays the received ID code absence on a display unit (not shown) to notify the user.

If the ID code sent to be erased is present in the engine start permission ID storage unit 17, the engine start permission ID change unit 23 determines “YES” in step A6, and the engine start permission ID storage unit. The ID code sent to be erased is erased from the ID codes stored in 17, and the mobile communication module 24 is notified of the elimination of this ID code (step A9). The mobile telephone module 24 transmits the deletion of the ID code to the information center 25 (step A10), and the control unit 29 of the information center 25 notifies the information terminal 27 of the deletion of the ID code (step A11). This completes the ID code erasing process routine.
In this way, when it is configured to notify the engine start permission ID changing unit 23 of the ID code to be deleted via the information center 25, when the vehicle 1 is actually stolen, when this is noticed. The engine can be prevented from starting, which is effective for preventing theft.

6 and 7 show an embodiment of the present invention.
In this embodiment, the ID code to be erased is not the ID code itself, but the ID code of the corresponding key is erased by designating the usage status of the key. Since other configurations are the same as those of the second reference example , the same reference numerals are given to the same portions as those in FIG. 4 in FIG. 6, and only different portions will be described.

  That is, in this embodiment, every time the engine is started, the ID code of the key used at that time is stored in the usage status storage unit 32 as usage status storage means shown in FIG. 6 by the control unit 14 of the immobilizer ECU 11. The The storage form in this case is such that the ID code of the last used key is stored, and the total number of times of use is stored for each ID code of a plurality of keys.

  Then, when the last used key is lost, instead of the ID code to be erased from the information terminal 27, the information to be erased according to the usage status of “last used key” is transmitted to the information center 25 (step of FIG. 7). B1). The information center 25 transmits the erasure target information “the last used key” to the mobile telephone module 24 (step B5). The mobile telephone module 24 gives the deletion target information “last used key” to the engine start permission ID changing unit 23, and based on this, the engine start permission ID changing unit 23 uses the use status storage unit 32 last. The ID code of the key used is acquired (step B6), and the ID code of the key used last is deleted from the engine start permission ID storage unit 17 (steps B7 and B10).

  If the key that is not normally used is lost, the erasure target information is designated as “the least frequently used key” (step B1). Then, the engine start permission ID changing unit 23 obtains the information to be deleted, which is the “key with the least frequently used”, via the information center 25 and the mobile telephone module 24, and the least frequently used from the usage state storage unit 32. The key ID code is acquired (step B6), and the key ID code is deleted from the engine start permission ID storage unit 17 (steps B7 and B10). In this case, if there are a plurality of keys having the same use frequency, the ID codes of the plurality of keys are deleted.

The present invention is not limited to the embodiment described above and shown in the drawings, and can be expanded or changed as follows.
The owner confirmation article is not limited to the keys 3 to 5. An IC card having a transponder may be used.
The ID code transmission from the keys 3 to 5 or the IC card to the immobilizer ECU 11 is not limited to radio waves, and may be performed by infrared rays. Moreover, it is not restricted to radio | wireless, A contact type may be sufficient.
When a lost key is found, the identification information of the key is given as re-registration identification information to the engine start permission ID changing unit 23, so that the start permission ID changing unit 23 sends the identification information to the engine start permission ID changing unit 23. It may be configured to re-register.

The block block diagram which shows the 1st reference example of this invention Perspective view of key inserted into key cylinder Flow chart showing control contents when deleting key ID code FIG. 1 equivalent view showing a second reference example of the present invention 3 equivalent figure FIG. 1 equivalent view showing an embodiment of the present invention 3 equivalent figure

Explanation of symbols

  In the drawings, 1 is a vehicle, 2 is a key switch, 3 to 5 are keys (owner confirmation items), 7 is a control unit, 8 is an ID storage unit (identification information storage unit), and 9 is a transmission / reception unit (transmission unit). 10 is a transponder, 11 is an immobilizer ECU (starting permission device), 12 is an engine ECU, 13 is a navigation device, 14 is a control unit (confirmation determination unit), 15 is a transmission / reception unit (reception unit), and 17 is an engine start permission ID. Storage unit (starting permission identification information storage unit), 20 an input unit (input unit, manual operation unit), 23 an engine start permission ID changing unit (erasing unit), 24 a mobile telephone module (mobile communication unit), 25 An information center, 27 is an information terminal, and 32 is a usage status storage unit (usage status storage means).

Claims (3)

Multiple owner verification items that the vehicle owner can carry,
When the person who is provided in the vehicle and performs the start operation of the travel drive source of the vehicle confirms that it is the owner of the vehicle by any of the plurality of owner confirmation articles, the travel drive source is allowed to start. With a starter tolerant,
For each of the plurality of owner confirmation items,
Identification information storage means for storing different identification information;
A transmission unit that transmits the identification information stored in the storage unit;
In the start permission device,
Start permission identification information storage means storing the identification information of the plurality of owner confirmation articles;
Among the plurality of identification information stored in the start permission identification information storage means, input means for inputting identification information that the user desires to erase as erasure target information;
An erasure unit for erasing the identification information input by the input unit from the identification information stored in the start permission identification information storage unit;
Receiving means for receiving the identification information transmitted from the owner confirmation article when a start operation of the traveling drive source is performed by a person carrying any of the plurality of owner confirmation articles;
When the identification information received by the receiving means matches any of the identification information stored in the start permission identification information storage means, it is determined that the vehicle has been confirmed to be the owner of the vehicle. and the confirmation decision means for allowing the start-up,
Use when the receiving means receives the identification number of the owner confirmation article when the traveling drive source is started, and stores the identification number and / or stores the number of uses for each identification number A situation storage means,
The input means is configured to be able to input an owner confirmation article last used instead of the identification information of the owner confirmation article and / or an owner confirmation article having the least use frequency,
The erasing means is the last used from the usage status storage means when the last used owner confirmation article or the least frequently used owner confirmation article is received as erasure target information from the input means. A vehicle security system , wherein identification information or identification information that is least frequently used is searched and the identification information is deleted from the start permission identification information storage means .   The vehicular security system according to claim 1, wherein the input unit includes a manual operation unit provided in the vehicle. The input means includes mobile communication means provided in the vehicle and capable of communicating with an information center.
When the identification information desired to be erased is transmitted from the information terminal to the information center, the information center transmits the identification information desired to be erased transmitted from the information terminal to the mobile communication means. The vehicle security system according to claim 1, wherein the vehicle security system is configured as follows.

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